Senior SDET

247Hire; Chicago (IL); On-site; USD 70,000 - 90,000; Full time

Job summary

247Hire is looking for a skilled QA Engineer in Chicago, IL, to ensure the quality and performance of software applications. The ideal candidate will have significant experience in manual and automation testing, focusing on UI and API testing.

You will analyze user requirements, create test scripts, perform various testing types, and document defects. Strong understanding of QA methodologies, automation testing skills, and a solid background in SQL and PostgreSQL are essential for this role.

Qualifications

• Strong understanding of QA methodologies, SDLC, and STLC.
• Proven experience in automation testing for UI and APIs.
• Ability to create clear and comprehensive test plans, test cases, and test reports.

Responsibilities

• Analyze requirements, user stories, and acceptance criteria.
• Design, develop, and maintain automated test scripts.
• Perform manual, regression, smoke, and exploratory testing.

Skills

QA methodologies

Functional testing

Automation testing for UI and APIs

Analytical skills

Problem-solving skills

Communication skills

Tools

Selenium

Playwright

RestSharp

Postman

Dapper

Job description

Overview

We are seeking a skilled and detail-oriented QA Engineer to ensure the quality, reliability, and performance of our software applications. The ideal candidate will have strong experience in manual and automation testing, covering UI and API testing, and will work closely with developers, product owners, and other stakeholders throughout the SDLC.

Responsibilities

• Analyze requirements, user stories, and acceptance criteria to identify test scenarios early in the SDLC
• Design, develop, and maintain automated test scripts for UI and API testing
• Perform manual, regression, smoke, and exploratory testing
• Automate tests using modern frameworks and tools to improve coverage and execution speed
• Execute and validate UI and API tests using automation and manual tools
• Validate backend data using SQL and PostgreSQL
• Validate UI and API performance using automated performance testing scripts
• Identify, document, and track defects, and work closely with development teams for resolution
• Participate in sprint ceremonies, defect triage, and release readiness decisions
• Ensure test automation follows best practices (reusability, maintainability, parallel execution)
• Contribute to continuous improvement of QA processes and test frameworks
• Experience integrating automation tests into CI/CD pipelines
• Provide production support for live applications, including issue investigation, verification, and resolution support
• Perform root cause analysis for production defects and work with development teams on fixes
• Support hotfixes, patches, and emergency releases, ensuring minimal business impact
• Assist in monitoring production incidents and ensuring SLA adherence
• Actively participate in all scrum ceremonies

Skills and Requirements

• Strong understanding of QA methodologies, SDLC, and STLC
• Experience in:
  • Functional testing
  • Regression testing
  • Smoke/Sanity testing
  • Integration testing
  • End‑to‑end testing
  • Performance testing
• Proven experience in automation testing for UI and APIs
• Ability to create clear and comprehensive test plans, test cases, and test reports
• Strong analytical, problem-solving, and communication skills

Technical Skills

Automation & Testing Tools

• Selenium (UI automation)
• Playwright (UI automation)
• xUnit (test framework)
• RestSharp (API automation)
• Artillery
• Postman (manual and automated API testing)

Programming Languages

• C#
• Java
• TypeScript
• JavaScript

Databases & ORM

• PostgreSQL
• SQL (data validation, complex queries)
• Dapper (data access and validation)

Testing Types

• UI Automation Testing
• API Automation Testing
• Manual UI and API Testing